The New Testament describes John the Baptist as baptizing Jesus, who Christians believe to be God incarnate. Here's the explanation:
* Jesus's humility and identification with humanity: Christians believe Jesus, despite being without sin, chose to be baptized by John as an act of humility and to identify himself with sinful humanity.
* Fulfillment of righteousness: Jesus said he needed to be baptized to "fulfill all righteousness" (Matthew 3:15). Some interpretations suggest this meant aligning with God's will and setting an example for others.
* Inauguration of his ministry: The baptism is seen as the beginning of Jesus's public ministry. The descent of the Holy Spirit and the voice from heaven affirmed Jesus's divine sonship and marked the start of his mission.